Rotary valve mechanism for internal-combustion engines



Oct. 7, 1930. E w. JEWELL 1,777,523

ROTARY VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES Filed Oct. 26 92 2 Sheets-Sheet l Fla-1 INVEN TOR. EDWARD Vl/ JEWELL A TTORNEY Oct. 7, 1930. E. w. J WEL}; 1,777,523

ROTARY VALVE MECHANISM FOR INTERN)! COMBUSTION ENGINES Filed Oct. 26, 9 2 Sheets-Sheet 2 INVENTOR. mm W JEWELL Patented Oct. 7, 1930 PATENT OFFICE EDWARD W. JEWELL, OF SAN DIEGO, CALIFORNIA ROTARY VALVE MECHANISM FOR INTEBNAL-COMBUSTTON ENGINES .j Application filed October 26, 1926. Serial No. 144,232.

My invention relates to rotary valve mechanism for internal combustion engines, and "the objects of my invention are: first, to provide an improved rotary valve mechanism over my valve mechanism disclosed in my to the casing sothat therotor cannot touch' the casing; fourth, to provide novel and efficient means' of providin an oil seal between the rotary valve and t e casing; fifth, to

provide a novelly constructed rotary valve for gas engines; sixth, to provide novel bearing and supporting means for rotary valves for gas engines, and seventh, to provide a rotary valve mechanism of this class which is very simple and economical of construction and installation, durable, eflicient in its action, and which will not readily deteriorate or get out of order.

With these and other objects in view, as will appear hereinafter, my invention con sists of certain novel features of construction, combination and arrangements of parts and portions, as will be hereinafter described in detail and particularly set forth in the appended claims,refe rence being had to the accompanying drawings and to the characters of reference thereon, which form a part of this application, in which:

Figure 1 is a longitudinal sectional view of the fragmentary upper portion of a fourcylinder gas engine, showing my valve mechanism in connection therewith and showing some of the parts and portions in elevation to facilitate the illustration; Fig. 2 is a transverse sectional view through 2-2 of Fig. 3, showing-some of the parts and portions in elevation to facilitate the illustration, and Fig. 3 is a i fragmentary sectional view through 3'3 of Fig. 2, showing some of the parts and portions in elevation to facilitate the illustration.

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Like characters of reference refer to similar parts and portions throughout the several views of the drawings. The casing 1, water jacket manifold 2, intake manifold 3, exhaust manifold 4, rotor members 5 and 6, packing rings 7 bearings 8, 9 and 10, oil conductor 11, oil conductor 12, oil conductor 13, and shaft 14, constitute the principal parts and portions of my rotary valve mechanism for gas engines.

The casing 1 is a hollow casing member provided with a bore 1 adapted for the rotary valve members-5 and6 to fit therein, the rotary valve members 5 and 6 being approximately 3/1000 of an inch less in diameter than the interior bore of the casing 1, and the space between the twois filled with a film of oil, as will be hereinafter described. This casing 1 is provided with oppositely disposed ports 3 and l the ports 3 being the intake ports and the ports the exhaust ports. It is also provided with ports 1 which communicate with the combustion chamber of the engine cylinder. It is provided with water jacket channels 1 for permitting the passage of water through the valve casing. Communicating with this water jacket channel 1 is the Water intake manifold 2,. which connects with the radiator. Secured to the sides of the casings over the ports 3 is an intake manifold 8, which communicates with the carbureter in the conventional manner, not shown, and onthe opposite side of the casing, secured over the ports P, is the exhaust manifold 4, which also extends in the conventional manner, not shown.

Secured at the one end of the casing 1 is another casing member 15 in which the gear and operating mechanism are encased. This casing and the gear operating mechanism are the same as in my former application, as hereinbefore set forth. Revolubly mounted in this casing 1 is a pair of revoluble valve members 5 and 6, which are secured on a shaft 14 which extends the full length of the casing, and the one end extends outwardly and connectsfwith the gearing for operating the valve. This shaft 14, it will be noted, is provided with two end ballbearings 9 and lOand with a central ballbearing teribr wallof the basing;

8, thus supporting the shaft 14 at its middle portion, as Well as at the ends, to prevent warping under pressure. Secured to this shaft 14 are the valve members 5 and 6 by means of keys 14. The keys extend into the hub portions 5 and 6 of the valves 5 and 6, said hub portions beingbored to receive the shaft 14. The ball bearin s 8, 9, and 10 support'th'eshaft'in concentric relation with the bore 1". Openings 5 and 6 extend axially through the hub portions 5 and 6 for permitting passage of lubricant through the ibazll'bearings. into the interior of the valves 5 and 6. These valve members 5 and 6 are each provided with valve ports 5 and 6 at right angles to each other in the sides which communicate with'the ports 4", 4 and 1 ih'prop'erly timed relation; Interposed between the ports 4 and 6*" and on opposite sides of said ports in the members 5 ahd6 are packing rings 7 which serve to provide tight joints between the portsflin' said revoluble members. Between these in this revolubfle member in the space betweeh the ports are provided annular thannels and 5 and 6 and 6, whichfserve arson channelsfor supplying an oil seal between the various ports in the revoluble members 5 and (5 and also furn'ishin an oil film for the revoluble members 5 d6 in thecasiiigs so'that there is between the rev uble' meihbls and the inv I g x H v These'channel's 5 and 55 and 6 and B fire supplied by meaiis of the oil conductor 11 with extended no'z'zle portions which extend to these channels through the casing wall. I

In the casing 1 on the exhaust manifold side is a conductor 13, whic'his mounted in 'a recess conforming thereto in the wall of the casing-and extending from this conductor 13 is a pluralityof branches 13', which extend to the interior of the casin in a position inline \lrith the ports 1 f0 providing a small quantity of oil to these 'revoluble members'b and 6 at the recessed or ported portions to prevent as leakage. It will be noted um the con utter 18 is mounted in the wall bf the casting 1 in such a manner that the exhaust manifold rests against one side of'the same, forming a ti lit packing and providing means for rea ily uncoveringjsaid conductor as desired. The other conductor 11 is mounted in the water intake manifold and is therefore easily ac- ;essi-ble by removing the water intake maniold.

It will be noted that the, operating gears, casing and ends of the casing are the same as in my former application, as hereinbefore set forth.

Though I have shown and described a particular construction, combination and arrangement of parts and portions, I do not wish to be limited to this particular con- -ing supports iii saidcasing engaging said,

bearminihium of gas leakage "exhaust ports, said pdrtsdva Yemen casing jacking rings in spaced ti 'in'g 'securedi on said shatttherein thereby providing, a r tween the separate cylinder p 18 inlet'cand exhaust'pqntsgmd with ports connecting with the separate erfine cylinders, 6

a shaft zrevoiam "mumit'nh casing extending from end to end thereof, ball bear shaft at each of its ends, another ingsupport in said casing atith mi 7 1e, 1m- I tion thereof engagi j the-middle portion said shaft-,a pair a trtedvaive seculedon said shaft andpgsitiblidft the middle bearing and'en lie'afing on a end of said shaft pacedapar packm'g positioned in each of said pof c gar v here between the separate pof spaced sufl'ieiently to preside .8 E, film of oil between said portedvalve and the casing for said v valve member in space 1'5 611' .Wi it e means ormat refine .es. ,7 I. 1 v a 2. Iii afrevoluble varietal" s3 casing provided with a inlet andexhaust 1 j necti with eparate a sna revol'iibly mouiited ih a; j i: tending from end to-endtheteoi; ing supports in saideasi ti $1 shaft in each end ahdi'fitxEfdlfltfiT i I I and a plurality of ported'va vs I cure'd to said shaft between tzi mediate b'earin 5 each 'am ral1ty of ports or en agement Wit engine cylinders and separ te i ing slightly smaller than th' iior tween 't e 'se'arate' 'en 6 f l forming chanr iels for of said ported valve membersw'reliit'te casing and means for conductin oilj' pressure to saids aces. H

3. In a revolu le valvefdligflscasing, ball bearingspositiond at ea lingo said casing and interim diate'i'selids extending 10a 'tudina ythi'ou'g'hfsa'id"" and suppo'rte' at its enfisand i'l'iterm its ends b engagement with said ball ings, a p ur'ality of port'ed' said casi a'nda pluraiitybf bers in spaced relation oiluaigpb e' v:

members and in close prox-iin'ty tothe spice .be-

.twmawmil ported valve members and means for conducting oil under pressure to the spaces between said packing members.

4. In a revoluble valve for gas engines, a casing, ball bearings positioned at each end of said casing and intermediate its ends, a shaft extending longitudinally through said casing and supported at its ends and intermediate its ends by engagement with said ball bearings, a plurality of ported valve members slightly smaller than the interior of said casing secured on said shaft and revoluble in said casing, a plurality of packing members in spaced relation on said ported valve members and in close proximity to the ports therein, relatively wide, shallow annular channels in said ported valve member between said packing members between the separate cylinder ports in said ported valve members, means for conducting oil under pressure to said annular channels and inlet and exhaust manifolds mounted on the sides of said casing communicating with the ports therein.

In testimony whereof, I have hereunto set my hand at San Diego, California, this 16th day of October, 1926.

EDWARD W. JEWELL. 

